Keyless padlock



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To all tri/tom may confiera.'

l Be itknoivn that l, 'CHESTER il. Soumise, V a citizen oit the United States, residing` at (gia esburg, in thecounty of Knox: and State otlllinois, have invented neiv anduset'ul improvements `in wleyless Padlocks, of `which the following is a specilicaticn.`

i `My "intention relates to certain new and use'lul improvements in keyless padloeks,

,10 the object of which is to provide alpadlock ,that can be locked` or unlocked by touch, in daylight or darkness, 1vithout the necessity oii carrying keyj for lthat purpose;

l attain these objects by the mechanism illustratedin the accompanying drawing, in wliiclr-Figl l is a iront vieu7 et my padlock. F 2 is an inner view ot one yot the @interlocking members-` Fig. 3 is a side ele'- vationshowing the laminated construction. Fig. 4l isa cross section. Fig. 5 is atop view from above downwards. i

Similarnumerals reiter to similar `parts j throughout the several views. y

" As illustrated in the drawings, my pad lock i comprises tvvo substantial circular members 2 interlocked together for relative y rotation, each member having` an upper Ucurved armto `provide the usual padlock .1 hoop. U y

any suitable material, but l` preferably form each oi'.t stamped lamination 52, 22 and 23 and provide interiorly ot each member a plurality of interlocking' tongues or flanges Bshown in plan View in Figure 2 and in `interlocked relation in Figure 4l.. Near the outer circumference oi each membeigthere are provided a plu 'ality of similar apertures W1; each aperture comprising an inner enlarged bore andvv an outer restricted bore. These apertures receive the combination pins l which are provided with enlarged heads at their inner endsI against which springs 5 housed in the enlarged bores bear. y

It should be noted that the majority of pins such as lthave the same sized head and are of equal length and are yieldingly held in abutting` relation by equal tension springs 5 when the apertures are in register,

so that thei1 abutting plane coincides with the dividing plane ot the members One or more pins such as 11 are however so con?I structed or so stressed by their springs that their abutting planes with the adjacent pins l when the apertures are in register is to The members` may be formed ot "the opposite side ot the di vidinp; plane; the

pins l1 thus projecting beyond the dividir-1e` i plane will look the members EZ together with the arms in close contact forming' 7 the shackleof tliepadlock as is obvious.y T o'aecomplish thisresult, the locking pins 11 are `preterably longer and more highly stressed' than their adjacent pins l2 which are more `weakly stressed and are shorter so (see Fin.

l) that when they are forced outwardly by the unequal tension, their ends Will not prometry will not be destroyed to afford detection` whereby said pins are arranged in undistinguishable array. The locking pins'll 'are also preferably provided with longer heads which are su'tlicient to extend acrossi in their the dividingrifilane ot the members E), locking,y relation. l

y lt is obvious that any number oiilocking y pins l1 may he provided and placed "anywhere, and may be changed "as etten as desired to dilierent apertures to change the combination, thus they might be placed in any aperture Atroni lato 8; they may also be placed in either member, and the shorter coacting pins l2 placed in the opposite memi l have entered into a detailed description `of" the `construction and relative arrangement ol. the parte comprised in the present and preferred embodiment of my invention in order to` impart a full, clear exact understanding' of the saidembodiment. I do not desire, however, to be understood as confining myself to the said specific construction and relative arrangement oft' parts as in .the future practicel oft the invention such changes or modiiications may be made, as

'fairly {fa-ll Within the scope of' my appended claims. Y Having described my invention,` what l f(i5 ject beyond the otherpins, and the symclaim and desire to secure by Letters Patent iszp l. In a padlock, a pair of relatively rota tional members eaehhaving a series el' similar apertures adapted to be brought into registry when said members are in locking position, equally spring stressed similar pins in some of said apertures, and unequally spring stressed pins oit different lengths in other apertures, the larger of the latter mentioned pins forming the locking element.

2. In a padlock, al pair of relatively rotational members' held in interlocking relation, each -meinber having `a series oii similar apertures adapted to be brought into registry when said members are in locking position,

v-a looking pin and an unlocking pin arranged in registering apertures, and other pins arranged in the other apertures, and means for properly, yieldingly. stressing-.said pins.

3. lnv a padlock, a. pair of relatively rotational members having interlocking `tongues 1 for holding the same for relative rotational movement, a series of slidable spring pressed pins carried byeaeli member and adapted to be brought into alineinent by rogreater spring pressure exerted. thereagainst whereby it will shilt beyond, the abutting plane olK said members iter locking the same together.

fl. ln a padlock, a ijrair ot relatiii'ely rotational members, each haring a (':ireular series of apertures adapted to be brought inte alinement when said members are rotated to locking' position, pins oi equal length yieldin retained. iu eerlain olf said alined apertures, pins of unequal length haring a combined length equal to the eombined length elf the other pins yieldingly retained in otheralined apertures by unequal spring); pressure, the longer there/il'Y being more strongly stressed whereby they will shi lt heyond 'the abut-ting plane ot said nienibeis for locking the sanie together.

5. ln a padlock, a pair ot relatirel)v iotational members, each haring a pair o it raised tongues on the inner surlaee tlmreol. `with the l'ongu olI one men'iber positioned under the tongues' oi? the other nieuibei.' l'or interlooking said members 1for relative rotational movement.

ln testimony whereof l allix my sigfjnalure 'in the presence of two witnesses.

lVitnesses Airrnnu NuLsoN, @mannen lV. ll un! muni/1u. 

